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Ciencia e investigación agraria

On-line version ISSN 0718-1620

Abstract

MOUCHILI, Mouchili et al. Effects of different poultry manure fertilization levels and cutting times on Moringa oleifera production. Cienc. Inv. Agr. [online]. 2019, vol.46, n.3, pp.310-318. ISSN 0718-1620.  http://dx.doi.org/10.7764/rcia.v46i3.2060.

The effects of different poultry manure fertilization levels and cutting times on the growth of Moringa oleifera were evaluated. A factorial design comparing six levels of poultry manure (0, 50, 100, 150, 200 and 250 kg N ha-1) and three cutting times (4, 6 and 8 months) with four replicates was used. One month after sowing, fertilization was performed. At each cutting time, 20 plants were collected per treatment for height and diameter measurements. Stem, leaf and whole plant biomass values were assessed for each plot based on the rate of fertilization with poultry manure and the cutting time. The results showed that irrespective of the cutting time, the largest plant height and diameter were obtained with 200 kg N ha-1 (160.37 ± 6.33 cm and 2.37 ± 0.33 cm, respectively). The biomass of stems, leaves and whole plants increased with the level of N fertilization. The highest biomass was obtained with cutting at 6 months and a fertilization rate of 200 kg N ha-1 (1.51 ± 0.01, 0.90 ± 0.01 and 2.41 ± 0.05 t MS/ha, respectively, for leaves, stems and whole plants). In conclusion, the application of poultry manure at a rate of 200 kg N ha-1 at the vegetative growth stage is optimal for Moringa oleífera production.

Keywords : Cutting times; fertilization; Moringa oleifera; plant biomass.

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